<template>
  <div class="small-child-wrapper">
    我是小儿子
    <div>{{ props.msg }}</div>
  </div>
</template>
<script setup>
import { defineProps } from "vue";

const props = defineProps({
  msg: {
    type: String,
    required: false,
  },
});
</script>
<style>
.small-child-wrapper {
  padding: 20px;
  border: 1px solid #000;
}
</style>
